Staffies are sturdy, muscular dogs with a median lifespan close to the UK average for all dogs.
A 5-year-old Staffordshire Bull Terrier is about 37 in human years, and a 10-year-old is about 60.
| Dog age | Human years |
|---|---|
| 1 year | 15 |
| 2 years | 24 |
| 3 years | 28 |
| 4 years | 33 |
| 5 years | 37 |
| 6 years | 42 |
| 7 years | 47 |
| 8 years | 51 |
| 9 years | 56 |
| 10 years | 60 |
| 11 years | 65 |
| 12 years | 69 |
| 13 years | 74 |
| 14 years | 78 |
| 15 years | 83 |
| 16 years | 87 |
Staffies count as medium dogs (9 to 23kg when fully grown). Medium dogs settle into about 4 to 5 human years for every year after their second birthday. If yours is much lighter or heavier than usual, pick their actual size in the full converter.
Open the full converterIn a 2024 study led by Dogs Trust, published in Scientific Reports, which looked at more than half a million UK dogs, half of Staffies lived to 12 or older. That's shorter than dogs overall, and about the same as a person reaching 69.
Lifespan figures: McMillan et al. (2024), Longevity of companion dog breeds: those at risk from early death, Scientific Reports. Age chart attributed to the American Animal Hospital Association.